Hi Gregorio.
Yuksel, just mentioned the most important points.
But you have to take in mind the future size of your landscape. SAP has the "T-Shirt" sizes for customers to choose which fit best.
Independent of the tshirt size you choose, SAP also recomends to increase that value, so that case, there is a need to increase the resources, you re not in the limit.
As for backup, please dont forget that, any backup data must NOT be stored in this space, but should rather be moved to external storage media.
Regards.
Osvaldo Ferreira